Análise do escoamento de HFC-134a em tubos capilares usando o modelo de dois fluidos
This work presents a numerical model to simulate refrigerant flow through capillary tubes, commonly used as expansion devices in refrigeration systems. The capillary tube is considered straight and horizontal. The flow is taken as one-dimensional and adiabatic. Steady state and thermodynamic equilib...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1996 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unesp.br:11449/64754 |
| Acceso en línea: | http://revistas.abcm.org.br/indexed/vol_xviii_-_n_01_-_mar__1996.pdf http://hdl.handle.net/11449/64754 |
| Access Level: | acceso abierto |
| Palabra clave: | Flow Through Capillary Tubes HFC-134a Refrigerant Fluid Two-Fluid Model Capillary tubes Computer simulation Fluorocarbons Mass transfer Mathematical models Phase equilibria Pressure Refrigerants Refrigeration Thermodynamics Conservation equation Expansion devices Mass flow rates Refrigerant flow Thermodynamic equilibrium Two fluid model Pipe flow |
| Sumario: | This work presents a numerical model to simulate refrigerant flow through capillary tubes, commonly used as expansion devices in refrigeration systems. The capillary tube is considered straight and horizontal. The flow is taken as one-dimensional and adiabatic. Steady state and thermodynamic equilibrium conditions are assumed. The two-fluid model, involving four conservation equations and considering the hidrodynamic nonequilibrium between the liquid and vapor phases is applied to the flow region. The pressure profiles and the mass flow rates given by the model are compared with experimental data. |
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